Phonograph needle



Jan. 8 1924.

s. NELSON PHONOGRAPH NEEDLE Filed April 9, 1923 ,Sanluel, MV WW ill Patented Jan. 8, 1924.

UNITED STATES SAMUEL NELSON, F \VATERLOO. IOWA PHONOGRAPH NEEDLE.

Application filed April 9,

To all whom it may concern:

Be it known that I, SaunnnNmson, a citizen of the United States, residing at "Waterloo, in the county of Black Hawk and State of Iowa, have invented certain new and useful Iniprm'ements in Phonograph Needles, of which the following is a specification.

My needles.

An iin ortant object of the invention is to provire a phonograph needle, the record engaging element of which is longitudinally adjustahle, to regulate the loudness of the playing, and also to compensate for Wear upon the )li ying element.

A further object of the invention is to provide a phonograph needle of the above mentioned character, the playing element of which may be relatively long, for adjustment to compensate for wear, and which may be replaced by a new playing element, when completely used up.

A further object of the invention is to provide a device of the above mentioned character, which is extremely simple in construction, inexpensive to manufacture, and eas to use.

ther ob'ects and advantages of the invention wil be apparent during the course of the following description.

In the accompanying drawings forming invention relates to phonograph "a part of this specification, and in whirh like numerals are employed to designate lilio parts throughout the same.

Figure 1 is a side elevation of a needle embodying; my invention,

Figure 2 is an edgioli-vntion ol' the Fame, and.

Figure 3 is it I'mrsperlivr view of rrrlnin oi llll elements omhodiod iu the needle.

ln the drawings, wherein for the purpose of illustration is shown it preferred (lilhodiinrnt of my invention. the numeral 5 designates a sound hox. o'quippml with the usual diaphragm. nrl'unlod hy lllt' vilu'zitory lever 6, lo Whirl] is ('(lllllil'lt'd in the usual manner. a sorkrt 7. provided with n rhnnpinn sr'rcw 8.

My improved noodle i-mhodies n hodjv' portion or hlock 9. having a lonpil'siliuoiiy extending shank or pin it). preferably integral therewith. The liloclr 9 is provided with a transverse opening [1. for slidzdily receiving a screw threaded pin 12. The wall of the opening 11 is smooth and the 1923. Serial No. 630,1;

screw 12 has no screw threaded engagement therewith, hut may slide therein. The unmeral 13 designates :in adjusting nut enaging the wrew threaded end of the pin 12, [he pin 12 is provided t its opposite end with a relatively large head ii. the inner fare of which is prefcral'ily substantially flat, While its outer fare may he rounded. The head ii. projects radially beyond the pin 12 for a substantial distance. Particular attention is rolled to the fact that the block or body portion ll is provided at its forward or lower end with a relatively wide smooth rounded face 9, projecting downwardly a. slight disinnre below or in advance of thinot ill and head ill. in lhc event that. th playing element. to he described. should lH 'll(l or break. the inci- 9 will slide upon the record without injury to the same, and prevent the nut 13 and head 16 from conlurting with the record.

The nuo'iernl i5 designates a playing eh ment, which is preferehly formed of a section of wire having the desired stiffness. This wire nnry he formed of any suitable metal, alloy. or any other suitable material. The playing element or winmay he in any suitable or ('omcniont li-ugjth. The head 14 is provided with a diagonal opening 16, passing, through the outer hwol the head,

at a point inwurdlv of it. prriphery fnnd through tho inner 'hit lure then-oi. at a polnt :idpuient to the pin ii. The playing element Iii, Wliiih is of thr soon diunu-tor lhrougln out its entire length, is adopted to he in solrd through this diagonal opening :i nd its forward om! portion adapted to he whunprd helm-en the tint fin-e oi the head id and till ilul fut-i oi" lluhody portion or hlorlc 5L llr rh-nrl illuslrzdrd in Figure 2.

in vice of 1hr l rrgoiug description, it will he obvious llizn llr playing: element 15 may he l'rd l'm'u'iirilly hy slightly unscrewing the not ill. and again r-houpod in the adjusted position hy srrvuing up this not. The diagonal opening through the relatively large heed l -l renders it rouvenient to thread a new playing element through the opening. lhtrimstrnction is extremely simple and inexpensive to manufacture.

it is to he understood that the form of my invention herewith shown :Ill l described is to he tak n as u preferred example of the some. and that various changes in the shape, size, and arrangement ol parts may he resortrd to without d parting from the spirit All] lll)

of my invention or the scope of the subjoined claims. v

Having thus described my invention, I claim:

1. A phonograph needle comprising a body portion haying an opening formed therein, a shank carried by the body portion for insertion within the socketoi the diaphragm mechanism, a screw threaded pin for insertion within the opening of the ody ortion and provided at one end with a hea said head having a diagonal opening which passes through the'outer and inner faces thereof, a nut engaging the 15 screw threaded end of the pin, and a playingelement adjustably mounted within the diagonal opening and adaptedto be clainped between the inner face of the head and the enacting face of said bod portion.

2. A phone raph nee le comprising a body portion having an opening, a shank carried by the body portion, a pm mounted 'within said opening and having an openi formed therein, a nut carried by the pin, and a longitudinal] adjustable playing element arranged within the'opemng of said 1n. a p In testimony whereof I afiix my signature.

SAMUEL NELSON. 

